Panasonic KX-TGP600 Operating Instructions Manual page 20

Before Operating the Telephones
Handset (KX-TPA60)
(All other models)
Ringer/Charge/Message Indicator
Status
Color Light pattern
Red On
Slow Flashing
Quick Flashing
Off —
20
(KX-TPA60 only) (KX-TPA60C only) (KX-TPA60RU only)
Charging
There is a new missed call or voice mail.
Receiving a call
Fully charged or the handset is not connected to the charger.
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Meaning